Figure 7. Normalized mass loss curve of epoxy resin under the action of positive and negative high-energy particles. ( a ) Figure 7. Normalized mass loss curve of epoxy resin under the action of positive and negative high-energy particles. Normalized mass loss curve of epoxy resin under the action of positive high-energy particles; ( b ) Normalized mass loss ( a ) Normalized mass loss curve of epoxy resin under the action of positive high-energy particles; ( b ) Normalized mass loss curve of epoxy resin under the action of positive and negative high-energy particles. curve of epoxy resin under the action of positive and negative high-energy